Wiretrustee SATA

The first native Raspberry Pi Compute Module 4 SATA carrier for tiny DIY NAS

This project is launching soon.

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Wiretrustee SATA is a Raspberry Pi Compute Module 4 (CM4) carrier board for DIY network attached storage (NAS). It is the first such board to directly transfer data via the native CM4 PCIe interface, and thus avoids unstable USB-to-SATA connections.

Wiretrustee SATA features four SATA ports, one gigabit Ethernet port, and a small form factor (100 x 100 mm), making it possible to build a tiny home NAS. It supports 2.5" and 3.5" drives, both SDDs and HDDs. Whereas 2.5" drives can be plugged in directly, 3.5" drives require additional extension cables.

In addition to a fully assembled and tested board, we plan to offer DIY kits for building your own complete NAS.

Features & Specifications

Compatible with All CM4 Variants

Wiretrustee SATA supports all the Compute Module 4 variants thanks to a microSD card slot (for CM4 light) and a firmware flashing mode via the top-side USB 2.0 port (for CM4 with eMMC).

Open Source

Wiretrustee SATA board has been verified to work with Raspberry Pi OS with SATA drivers enabled in a cross-compiled kernel. All the necessary installation instructions and scripts (including RAID setup), as well as board schematics and PCB layout, will be published on our website.

In the Press

Jeff Geerling

"I've built a few Raspberry Pi NASes in my day, but none were *this* nice."


"Wiretrustee has designed an ultra-compact x4 SATA Raspberry Pi CM4 carrier board with up to 220MB/s throughput for NAS applications."

CNX Software

"The good news is the board is now open-source hardware with all resources shared publicly including the Allegro schematics and PCB layout, Gerber files, 3D models for the heatsink, and case designs for 2.5-inch or 3.5-inch drives. "


"The NAS-oriented SATA Board supports any Raspberry Pi CM4 variant. The carrier provides a Marvell 88SE9215 controller to enable 4x powered SATA ports with up to 220MB/s throughput."

About the Team


Tallin, Estonia  ·   wiretrustee.com

A small team of IT engineers and hardware enthusiasts.

Mikhail Bragin

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